Cookie sandwich



FIG. 1 is a top, front, right side perspective view of a cookie sandwich of our new design;

FIG. 2 is a top plan view thereof, the bottom plan view thereof being identical thereto;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a right side elevational view thereof, the left side elevational view being a mirror image thereof. 

We claim the ornamental design for a cookie sandwich, as shown and described. 